A - Human Necessities – 47 – L
Patent
A - Human Necessities
47
L
15/42, 342/29.3
A47L 9/28 (2006.01)
Patent
CA 1164075
PA-5091-0-VC-USA "VACUUM CLEANER CONTROL" ABSTRACT OF THE DISCLOSURE A vacuum cleaner structure having a control for reducing the total current delivery to the vacuum cleaner as when both a suction motor thereof and a brush motor thereof are being operated concurrently. The control in- cludes an "On-Off" switch mounted on a portion of the suction hose for the vacuum cleaner. The invention compre- hends the provision of such a current-reducing control where the full load currents of the suction and brush motors cumu- latively total an amount greater than a preselected safe current deliverable to the vacuum cleaner. The control is arranged to be used with a vacuum cleaner having a suction hose connected between a suction unit and a cleaning unit thereof, such as a floor cleaning unit. In one form, the control utilizes a two-conductor wire suction hose, and in another form, the control utilizes a three-conductor wire suction hose. The "On-Off" switch is mounted on the handle on the end of the suction hose which may be attached to a cleaning unit and circuitry is provided in a control portion carried by the suction unit responsive to the disposition of the "On-Off" switch to effect the desired current and speed control of the system. The handle-mounted "On-Off" switch also controls the suction unit during cleaning operations which do not employ a floor cleaning unit including a motor- driven brush.
382763
Nyland Roger L.
Vander Molen Donald R.
Kirby Eades Gale Baker
Matsushita Electric Corporation Of America
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